Robin Rigg Wind Farm

It was constructed by E.ON at Robin Rigg, a sandbank in the Solway Firth midway between the Galloway and Cumbrian coasts.

[2] Prysmian provided two 132 kV export cables each 12.5 km long to connect the wind farm to the on-shore substation.

The wind farm was the subject of a legal case decided by the UK Supreme Court in 2017, which arose because certain of the foundation structures failed shortly after completion of the project.

[7] The case was legally significant because a requirement that the structures "be designed with a lifetime of 20 years" was contained within a Technical Requirements document which formed part of the contract, but on appeal Jackson LJ considered this requirement "too slender a thread" upon which to hang MT Hojgaard's liability in the light of other, inconsistent, parts of the specification, and because E.ON had specified a requirement that they comply with offshore standard J101, an international standard for the design of offshore wind turbine structures produced by the technical standards company DNV.

[8] The J101 standard contained a calculation error; although MT Hojgaard aimed to comply with the standard as-published, their design was not sufficiently robust to meet the 20-year lifetime requirement and so the Supreme Court found they had breached the contract.